I have a ls1/magnum with all of the Holley gear on my 67. Slight trimming of the shifter hole, but no other tunnel mods.

Tim

I got my whole trans/clutch/hydraulic setup from Silver Sport Transmissions. It was a great experience and I had a number of questions before and after I purchased. I upgraded my clutch to the McLeod RST as well. This is going to be mated to my Thompson Motorsports 550hp forged LS3.